Got a home made PP here and trying to see how the real PP works. Does everything move off of the little stepper motor in the real PP or does it just move the carb linkage. Want to know if the whole hand held throttle control moves by the cable being pulled by the motor.
|The Hand held throttle knobby thing does not move after the PP is engaged. Once you move the throttle back towards idle speed it disengages.|
|hey luke if your homemade PP works let me know and I'll buy the design off of you.|
|We are only a little bit away. Although we haven't decided between a servo or a stepper motor to control the throttle. We are also trying to make a better throttle linkage. |
I see we have the soame boat though.
I suggest that you drive a boat with a Perfect Pass before you attempt to make your own.
One important safety feature: the Perfect Pass can only subtract throttle, it can't add any. This allows for the driver to override the speed control at any time by simply chopping the throttle.
Since the PP needs some throttle to work with, it "steals" some during acceleration and holds it in reserve. This characteristic was annoying to me at first, as it would cause the boat to slow down while I was trying to ease it up to the desired speed. I became accustomed to it and now I compensate, advancing the throttle a little faster at the point PP steals it.
As for stepper/servo motor, I think stepper is the way to go. It is certainly what PP uses. I would be concerned that a servo motor would draw excessive current and cause heating/reliability issues.